2,011 results match your criteria: "Cameroun ; Centre Hospitalier Universitaire de Yaoundé[Affiliation]"

While the prevalence of overweight and obesity is rising in Africa, the practice of bariatric surgery remains limited in our country, Cameroon. Weight loss outcomes following sleeve gastrectomy (SG), the most widely used bariatric surgery technique worldwide, have not yet been studied in our context. The medical records of all patients who underwent SG in our surgery department between January 1, 2016, and September 30, 2020, were reviewed retrospectively.

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Science is integral to society because it can inform individual, government, corporate, and civil society decision-making on issues such as public health, new technologies or climate change. Yet, public distrust and populist sentiment challenge the relationship between science and society. To help researchers analyse the science-society nexus across different geographical and cultural contexts, we undertook a cross-sectional population survey resulting in a dataset of 71,922 participants in 68 countries.

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Detection and Molecular Characterization of from Wastewater Environments in Two University Campuses in Nigeria.

Front Biosci (Elite Ed)

December 2024

Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, Westville Campus, University of KwaZulu-Natal, 4000 Durban, South Africa.

Background: () is the most prominent bacterial pathogen that causes urinary tract infections (UTIs), and the rate of resistance to most used antibiotics is alarmingly increasing.

Methods: This study assessed the hostel gutters of two Nigerian universities, the University of Nigeria, Nsukka (UNN) and Kogi State University, Anyigba (KSU), for and its antimicrobial resistance genes (). Oxoid Chromogenic UTI agar was used to isolate uropathogenic (UPEC), identified using standard biochemical tests.

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Introduction: the epidemiological profile of oral diseases is characterised by disparities between specific groups. The purpose of this study was to assess oral health status of Baka Pygmies in Dimako, Cameroon.

Methods: we conducted a cross-sectional study from January 1 to June 14, 2021 in the Baka camps in Dimako.

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Objectives: Tuberculosis (TB) diagnosis in children remains challenging due to the paucibacillary nature of specimens and the difficulty in obtaining suitable samples. The use of alternative samples like nasopharyngeal aspirate (NPA) and stools, alongside Xpert MTB/RIF testing, offers promising improvements. This study aimed to assess the diagnostic performance of the Xpert MTB/RIF test on NPA and stool samples for detecting intrathoracic TB in children from Madagascar, Cameroon, and Ivory Coast.

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Unlabelled: In the Global Polio Laboratory Network (GPLN), poliovirus (PV) screening results from acute flaccid paralysis (AFP) surveillance is based on virus isolation (VI) through cell culture, entailing long turnaround times and the amplification of live poliovirus. An alternative Direct Detection strategy (DD-ITD) for screening viral nucleic acid from stools, bypassing the need for virus culture, has been developed and extensively validated by GPLN partners. A multi-laboratory demonstration project was conceived to field-test the DD-ITD method by GPLN laboratories from the WHO African, Western Pacific, and Eastern Mediterranean regions, where wild serotype 1 or vaccine-derived polioviruses still circulate.

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Objective: To estimate the neonatal mortality rate, causes and factors associated to newborn deaths in Diamaré in Cameroon.

Patients And Methods: It was an analytical and retrospective cross-sectional study. The period of the study was from January 1 2018 to December 31 2019 in 11 health facilities in Diamaré.

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The CMCs are viable materials for applications in industry and process innovation for removing heavy metal ions since they may be used in static and dynamic adsorption processes. It is necessary to develop simple, low-cost water treatment methods that use organic, biodegradable polymers such as nanomaterial-modified cellulose microcrystals. The column technique was used to investigate the effects of operational parameters such as pH, bed depth, concentration and flow rate.

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Article Synopsis
  • Tuberculosis (TB) is facing a significant challenge due to drug resistance, with Cameroon reporting a 1.4% prevalence of drug-resistant TB among new cases and 8.3% among those being retreated in 2022.
  • A study analyzed data from 2013 to 2022 in Cameroon, examining the trends, risk factors, and treatment outcomes related to drug-resistant TB, finding a total of 567 reported cases.
  • The study reported a high database quality (93.7%) and highlighted concerning treatment outcomes, including an 11.9% refusal rate and a 14.8% case fatality rate, with male gender and HIV-positive status identified as significant risk factors for poor treatment outcomes.
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Introduction: COVID-19 is an infectious and contagious disease declared as public health emergency of international concern in 2020. Given its high morbidity and mortality, one of the responses to this pandemic is vaccination, which has posed a serious problem of acceptance among the population in sub-Saharan Africa (SSA) and Cameroon in particular. Thus, the purpose of this study was to contribute to a better response to the pandemic in Cameroon by measuring the effectiveness of the COVID-19 vaccine.

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Background And Objectives: O1 or non O1/non O139 is found in water ecosystems where it colonizes phytoplankton and has different lifestyle. This study aimed to investigate the impact of some algae extracts on the survival/growth of both strains.

Materials And Methods: Algae extracts consisting of three fractions, F1 containing chlorophyll-a, F2 containing chlorophyll-b, and F3 containing carotenoids, and raw extract (RAE) were obtained from the algal bloom collected in the Kaliao stream (Maroua, Cameroon).

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Accuracy of Xpert and alternative sampling methods to diagnose childhood pulmonary tuberculosis, a prospective cohort study.

Clin Microbiol Infect

November 2024

Unité d'Epidémiologie et de Recherche Clinique, Institut Pasteur de Madagascar, Antananarivo, Madagascar.

Article Synopsis
  • The study aimed to assess the effectiveness (sensitivity and specificity) of various diagnostic tests for childhood pulmonary tuberculosis (CPTB) using latent class analysis, given the lack of definitive reference standards.
  • Conducted in the Ivory Coast, Madagascar, and Cameroon with 1,165 children suspected of having CPTB, multiple tests were evaluated, including smear microscopy, culture, and Xpert on different sample types.
  • Results indicated that while smear microscopy was very specific, it had low sensitivity across all sample types; Xpert showed better sensitivity, particularly in gastric and nasopharyngeal aspirates, suggesting a potentially effective diagnostic strategy for CPTB.
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Spatiotemporal dynamics of rabies virus detected in rabid dogs in Cameroon, 2010-2021.

Infect Genet Evol

December 2024

Virology Service, Centre Pasteur du Cameroun, PO Box 1274, Yaounde, Cameroon; Salisbury Animal Health Laboratory, Maryland Department of Agriculture, 27722 Nanticoke Rd, Salisbury, MD 21801, United States of America. Electronic address:

Rabies is a viral zoonosis that causes an estimated 60,000 human deaths each year, mainly in Africa and Asia. The etiological agent of rabies, the Rabies Lyssavirus or Rabies Virus (RABV) has been characterized in dog populations in Cameroon, in previous studies. However, the dynamics of RABV maintenance and propagation in dogs are still to be documented in Cameroon.

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Article Synopsis
  • The WHO African Region is significantly impacted by malaria, contributing to 94% of global cases, prompting research on detecting Plasmodium RNA in blood donors from Cameroon, Madagascar, and Mali.
  • Testing involved analyzing whole blood samples using a specialized assay to identify reactive results, with findings revealing varying rates of Plasmodium repeat reactivity across the countries.
  • The study concluded that detecting Plasmodium RNA and related antibodies can enhance safety measures in blood donations and help tackle malaria risks effectively.
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Background: Psychological and social support for adolescents living with HIV remains undocumented and unaddressed in Central Africa. This study aimed at assessing effectiveness of a peer-facilitated community-based support model in improving retention in care among adolescents living with HIV and attending care in Chantal Biya Foundation, Yaounde, Cameroon.

Materials And Methods: We conducted an analysis of adolescents aged 10-19 years old, perinatally infected with HIV, on follow-up in the Day Care Unit of a reference hospital in Yaounde, Cameroon, and enrolled in the IAS-CIPHER-2021/1214-ATE-SMAVI, a individually randomized controlled trial.

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Forest expansion into savanna is a pervasive phenomenon in West and Central Africa, warranting comparative studies under diverse environmental conditions. We collected vegetation data from the woody and grassy components within 73 plots of 0.16 ha distributed along a successional gradient from humid savanna to forest in Central Africa.

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A loop-mediated isothermal amplification test for yaws: a multi-country diagnostic accuracy evaluation.

Lancet Glob Health

November 2024

Faculty of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Hospital for Tropical Diseases, London, UK; Division of Infection and Immunity, University College London, London, UK.

Background: To meet the WHO target of eradicating yaws by 2030, highly sensitive and specific diagnostic tools are needed. A multiplex Treponema pallidum-Haemophilus ducreyi loop-mediated isothermal amplification (TPHD-LAMP) test holds promise as a near-patient diagnostic tool for yaws and H ducreyi. We conducted a prospective evaluation in Cameroon, Côte d'Ivoire, Ghana, and the Republic of the Congo to determine the diagnostic accuracy of the TPHD-LAMP test, as well as to assess its acceptability, feasibility, and cost.

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Ethnopharmacological Relevance: Detarium microcarpum Guill. & Perr. is used traditionally in Far North Cameroun to treat stomach aches, anxiety, epilepsy, and other mental disorders.

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Background: Resistance to antimalarial drugs remains a major obstacle to malaria elimination. Multiplexed, targeted amplicon sequencing is being adopted for surveilling resistance and dissecting the genetics of complex malaria infections. Moreover, genotyping of parasites and detection of molecular markers drug resistance in resource-limited regions requires open-source protocols for processing samples, using accessible reagents, and rapid methods for processing numerous samples including pooled sequencing.

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On August 14, 2024, following a regional declaration by the Africa Centres for Disease Control and Prevention, the World Health Organization declared mpox a Public Health Emergency of International Concern, marking the second such declaration in two years. A series of outbreaks involving the more virulent clade I virus (compared to clade II, which caused a global outbreak in 2022), has now spread in 13 African countries, exposing the inadequacies of the public health infrastructure in these settings. There was significant investment during the 2022 global outbreak, but these efforts failed to address vaccine access and treatment in the Global South.

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From the perspective of developing relevant interventions for treating HIV and controlling its spread, it is particularly important to comprehensively understand the underlying diversity of the virus, especially in countries where the virus has been present and evolving since the cross-species transmission event that triggered the global pandemic. Here, we generate and phylogenetically analyse sequences derived from the (2010 bp;  = 115), partial (345 bp;  = 36), and (719 bp;  = 321) genes of HIV-1 group M (HIV-1M) isolates sampled between 2000 and 2022 from two cosmopolitan cities and 40 remote villages of Cameroon. While 52.

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Introduction: Extended-spectrum β-lactamase (ESBL)-producing pathogenic E. coli is a global public health issue, especially in sub-Saharan African countries such as Cameroon. It contributes to increase significantly hospital length of stay, morbidity, mortality and economic costs because of treatment failures.

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Adsorption of Cr(VI) and phosphate anions by amino-functionalized palm oil fibers.

Environ Sci Pollut Res Int

October 2024

Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.

Article Synopsis
  • This research introduced a new sustainable adsorbent called PF-Aq, made by adding amino groups to palm oil fibers (PF), which enhances its ability to remove phosphate and Cr(VI) ions from water.
  • Experimental techniques confirmed the successful modification of the fibers, showing PF-Aq has a high adsorption capacity, with maximum values of 151.07 mg/g for phosphate and 206.08 mg/g for Cr(VI).
  • The findings indicate PF-Aq is not only effective and recyclable but also cost-efficient, with optimal performance at pH 4.0 and different thermal behaviors during adsorption for the two ions.
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Background: Virological failure (VF) among children remains concerning, with high risks of HIV drug resistance (HIVDR) emergence and increased disease progression. Therefore, monitoring of viral non-suppression and emerging HIVDR is crucial, especially in the frame of sociopolitical unrest.

Objective: The study sought to determine the prevalence of VF and evaluate the acquired HIVDR and viral genetic diversity among children in the Northwest region of Cameroon during the ongoing sociopolitical crisis.

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